Switch client to JSON-RPC

Modify ipalib.rpc to support JSON-RPC in addition to XML-RPC.
This is done by subclassing and extending xmlrpclib, because
our existing code relies on xmlrpclib internals.

The URI to use is given in the new jsonrpc_uri env variable. When
it is not given, it is generated from xmlrpc_uri by replacing
/xml with /json.

The rpc_json_uri env variable existed before, but was unused,
undocumented and not set the install scripts.
This patch removes it in favor of jsonrpc_uri (for consistency
with xmlrpc_uri).

Add the rpc_protocol env variable to control the protocol
IPA uses. rpc_protocol defaults to 'jsonrpc', but may be changed
to 'xmlrpc'.
Make backend.Executioner and tests use the backend specified by
rpc_protocol.

For compatibility with unwrap_xml, decoding JSON now gives tuples
instead of lists.

Design: http://freeipa.org/page/V3/JSON-RPC
Ticket: https://fedorahosted.org/freeipa/ticket/3299

1 files changed, 2 insertions, 2 deletions

diff --git a/ipatests/test_xmlrpc/test_external_members.py b/ipatests/test_xmlrpc/test_external_members.py
index 112470dcb..a2128cb77 100644
--- a/ipatests/test_xmlrpc/test_external_members.py
+++ b/ipatests/test_xmlrpc/test_external_members.py
@@ -45,8 +45,8 @@ class test_external_members(Declarative):
     @classmethod
     def setUpClass(cls):
         super(test_external_members, cls).setUpClass()
-        if not api.Backend.xmlclient.isconnected():
-            api.Backend.xmlclient.connect(fallback=False)
+        if not api.Backend.rpcclient.isconnected():
+            api.Backend.rpcclient.connect(fallback=False)
 
         trusts = api.Command['trust_find']()
         if trusts['count'] == 0: